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YAKIMA, Wash. -- Disbelief and anger still hang over Yakima after Kevin Harper's plea deal. A deal that got him off the hook for last year's brutal beating deaths of three people in West Valley. That leaves Tracy Culton as the only suspect charged with murder. KIMA learned the Yakima Sheriff's Office put someone new in charge of the investigation.

"Who did this," asked Rocky Faulconer a friend of the Goggins.

That's the question on everyone's mind, but we may never know. Harper is off the hook. Leaving only one other person charged with the murders; Tracy Culton.

Prosecutors said she admitted to planning the Goggin burglary. Admitted being there the night Bill, Pauline and Bettye Goggin were beaten to death and admitted to stealing Bettye's jewelry then selling it for drug money. Prosecutors said she didn't admit to murder. Now, that will have to be proven in court.

"Do you feel there is enough evidence to convict Tracy Culton," KIMA asked Stewart Graham the spokesperson for the Yakima’s Sheriff’s Office.

"Oh, I can't answer that," said Graham.

We dug up court documents that said Culton “intentionally assaulted William and/or Pauline Goggin”.

However the prosecutors aren't talking. So, we continued to question the deputy. What happens if Tracy Culton isn't found guilty of the murders?

"Then, uh, for us the case would be cleared," said Graham.

Meaning the case would be closed.

The sheriff's office hasn't given up, but has changed its course. KIMA learned the lead detective has been taken off the case. Detectives are now re-questioning witnesses. There are no other suspects at this time. Tracy Culton is scheduled to go on trial in early December.